Abstract: In this article the authors analyze the economic content of tax potential of the region based on its essential characteristics. The subject of the research is the combination of financial relations connected with formation and development of the tax potential of the region. The object of the research is the tax potential of the region. The author considers the essential features of the tax potential of the region that define its economic contents, which include probabilistic and reproductive nature of the transformation of resources tax to the tax revenues of the budget through existing institutional forms of taxation taking into account tax risks and tax effort. A special place is given to the analysis of classifications of tax revenues that exist in the economic literature. The authors also offer their own classification of tax incomes of the regional budget when tax budget revenues of the region are divided into tax revenues of this fiscal period and tax revenues for future financial periods. The proposed classification allows to identify important groups of tax revenues which allows to analyze them from the point of view of identifying possible additional tax revenue and regional tax policy under current tax legislation. The theoretical and methodological basis of the research include works of domestic and foreign scientists devoted to economic theory, tax theory, finances, taxation, tax planning, analysis and control. The authors of the article use materials of periodicals, Internet resources, laws and regulations, accounting data and reports submitted by tax authorities and major taxpayers of the region. In the process of the research the authors have used the following methods: observation, analysis and synthesis, methods of systems and economic analysis, dialectic, comparative, functional methods, thus ensuring the reliability and validity of the findings and recommendations. The novelty of the research is caused by the fact that the authors develop theoretical positions that reveal the essential characteristics and economic content of tax potential of the region. Based on the author's conceptual approach the author has developed a structural model of the tax potential of the region that reflects its complex structured composition and can serve as the basis for the formation of methodological instruments to assess it.

Abstract: The subject of the research is the system of financial relations on the issues of the origin, formation and distribution of tax flows in the tax system of Russia. The object of research is the tax system of the Russian Federation. The author of the article discusses modern trends and problems of functioning of the Russian tax system. The conclusion is that improving the efficiency of the tax system of the Russian Federation is only possible with the modern scientific concept of improvement of tax legislation based on a systematic approach taking into account the implementation of the basic law-making factors and create the optimal interaction of all parts of the tax system. Special attention is given to identifying the key problems of the domestic tax system in the budget deficit and the impact of economic sanctions. On the basis of the systems approach the author identifies problems and trends of modern tax system of the Russian Federation. As a result, the work revealed weaknesses in the Russian tax system. Convincingly concluded that the existing drawbacks of the Russian tax system is largely due to the fact that in developing the concept of its construction, not fully a comprehensive approach to the problem of taxation. Furthermore, not taken into account the complex interactions of all participants of social relations in the process of establishment and collection of taxes. The lack of an integrated approach in the formation of the Russian tax system exacerbates economic and social contradictions, shifting capital abroad, the development of the shadow economy. The author argues the conclusion that as a result of tax reform the tax system, while remaining a tool of redistribution of GDP, must become more neutral. Primarily redistributive methods of tax regulation of the market mechanism will cease to have a deterrent effect on the dynamic development of the national economy. The results of the study can be applied to Federal and regional authorities as a theoretical and methodological framework in the development of proposals for the development of the Russian tax system. The formation of an effective tax system involves the necessity of realization of complex of measures of economic, financial, legal, methodological and organizational plan for achieving the projected goals of social and economic development of the Russian Federation which is a necessary condition for economic growth in the country, improving the welfare of Russian citizens.

Abstract: The subject of the research is the theoretical and methodological foundations of regional implementation of fiscal policy aimed at the development of tax capacity of the Russian Federation regions. The object of the research is the Russian tax system, regional tax policy and domestic and foreign experience in tax regulation of territorial development. The authors examine such topics as the economic and functional contents of the regional tax policy. They make a reasonable conclusion that effective regional tax policy should contribute to: stabilization of production and economic growth, equalizing of conditions of socio-economic and financial development of the region and ensuring full implementation of the principles of the tax system and fiscal federalism in Russia based on the common economic and fiscal space principle, establishment and maintenance of financial and economic guarantees of local self-government, satisfaction of the need for cash of all levels of government sufficient for economic and social policy as well as implementation of assigned functions and tasks  by relevant authorities. The methodological basis of the research involves the dialectical method of research, principles of the historical, logical, systematic and comparative analysis  and induction/deduction methods. The theoretical basis of the research included scientific researches of domestic and foreign economists on the matter, periodical literature, data provided by expert analytical centers, institutions, committees and commissions of representative and executive authorities of different levels on axation and economic issues. The conclusion is that the improvement of the effectiveness of the regional tax policy affects the volume of tax revenues to the budgets of the Federation and, ultimately, contributes to the development of taxable capacity of territories. The authors also make a reasonable conclusion that the main aim of the regional tax policy is to increase regional taxable capacity through reinforcing the revenue base of regional budgets for the implementation of expenditure commitments to ensure the economic growth of the Russian Federation in terms of fiscal federalism. Special attention is paid to the principles of the regional tax policy which, according to the authors, should be divided into general and specific principles. The authors describe decomposition of the structural elements of the regional tax policy and define the basic reasons for the low revenue base of regional budgets as well as offer measures aimed at the development of taxable capacity of territories.

Abstract: The article is devoted to the analysis of the role of fiscal federalism in reducing interterritorial differentiation of regions. The authors make a conclusion that the applicable system of allocation of taxes between different budget levels is irrational. They reasonably conclud that a significant centralization of tax revenues at the federal level increases interterritorial differentiation of regions, reduces sufficient incentives to develop their own revenue base and increases the volumes of incoming financial flows between the regions and federal authorities as well as between municipal units and regions. Based on the system approach and with the help of the SWOT analysis the authors describe the features of the current system of allocation of taxes between budgets of different levels in the Russian Federation. As a result of the research carried out, the authors reveal the defects of the current Russian taxation system. They make a reasoned conclusion that the defects of the Russian model of fiscal federalism is largely due to the lack of a comprehensive approach to developing the taxation system. Moreover, not all complex relations between participants of social relations arising in the process of imposing and paying taxes are taken into consideratin. The lack of an integrated approach to the establishment of the Russian taxation system exacerbates the economic and social contradictions, outflow of capital abroad and development of the shadow economy. 

Abstract: Subject, purpose. The article is devoted to the economic and functional content of fiscal federalism. The analysis of various approaches to the study of fiscal federalism is provided. The researcher proposed and substantiated the role of tax federalism and descibed the purpose, objectives and principles of fiscal federalism. Method or methodology of work. The research is based on the system approach as well as comparative analysis which has allowed to analyze various aspects of economic and functional content of fiscal federalism.The results of the research. As a result of the research, the author has identified the relationship and the distinctive characteristics of the concept of "fiscal federalism" and associated concepts such as "fiscal federalism", "budget control" and "intergovernmental relations". The researcher provides a reasoned conclusion about the feasibility of using an integrated approach and studying economic, legal, institutional, reproductive and institutional aspects of fiscal federalism.The scope of the results. The results of the research can be applied by federal and regional authorities as a theoretical and methodological basis for the development of proposals on the development of tax federalism in Russia.Conclusions. Fiscal federalism is a complex concept describing various aspects of public life. To disclose its contents it is necessary to apply the system approach. The novelty of the research is caused by the fact that the reseacher offers and substantiates the functions of fiscal fedealism and describes the purpose, objectives and principles of fiscal federalism.